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(No Model.)

A. MQNIEOE.

CLAMP FOR FRAME SAWS.

No. 298,995. Patented May 20, 1884.

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ANDREW? MONIEOE, OF NEWVARK, NEWV JERSEY, ASSIGNOR OF ONEHALF TO ROWLANDHILTON, OF SAME PLACE.

CLAMP FOR FRAME SAWS.

SPECIFICATION forming part of Letters Patent No. 298,995, dated May 20,1884.

Application filed October 25, 1883. (No model.)

To all whom it may cancer-m.-

Be it known that I, ANDREW McNinon, a citizen of the United States,residing in the city of Newark, county of Essex, and State of NewJersey, have invented certain new and useful Improvements in Clamps forFrame- Saw Buckles, fully described and represented in the followingspecification and the accompanying drawings,forming a part of the same.

This invention relates to that class of saws in which a long and narrowblade is stretched in or at one side of a suitable frame by means ofastretcher fixed to one end of the blade; and my improvements consist inan improved con- I 5 struction for the stretcher-clamp, and in thecombination therewith of straps adapted to clamp the wooden handle uponthe back of the frame.

These improvements will be understood by reference to the annexeddrawings, in which Figure 1 is a side view of a handle and stretcherhaving part of the frame and saw attached. Fig. 2 is an end or insideview of the handle and its attachments, taken from the line 00 m in Fig.1; and Fig. 3 is a detached side view of the frame and saw-blade removedfrom the handle, the same being represented as broken to show its endswithin the limits of the draw ings.

A is the handle, B the frame, 0 the blade, and D a buckle or stretcherto which one end of the blade is affixed to tighten it when required.

The buckle usually consists of a bolt insert ed in one end of the frame,and provided with a nut to draw the blade longitudinally, the framebeing often forged with an eye atone end expressly to receive the shankof the buckle. In my invention the clamp for the buckle is not formed onthe frame, and the latter may thus be very cheaply constructed by merelybending a flat or oval bar of iron to the required shape, as shown inFig. 3, without heating or-forging the latter. The end of the frame istherefore cut short at the lower side of the handle, as appears in Fig.1 and as indicated at B in Fig. 3, and the clamp for the buckle isconstructed in two symmetrical parts adapted to fit upon each side ofthe .the blade being pinned into the jaws of the handle, as shown at E Ein Fig. 2, and se-- 0 cured thereto by one or more bolts, F. Such boltis also inserted through the butt-end of the bent frame B, and a pin,rivet, or screw,

F, is also inserted through the same parts, if but one bolt be used, tokeep the frame and 5 5 clamp from tipping under the stress of thestretching-screw D, which is supplied with a nut, G, at the outer end totighten the saw, as usual.

The ends of the clamping-pieces E E where they extend below the handle Aare formed to nearly touch one another, and have each of thematransverse notch adapted to receive one-half of the stretcher D. Ascrew, H, adapted to pinch the lower ends of the parts E E together, isinserted through them between the handle and thestretcher, and serves topinch the stretcher between the notched ends of the clamps E E when thesaw is in use, thus preventing the strain upon the blade 0 from jarringthe nut G loose upon the screw D.

The stretcher is shown herein in Fig. 2 as of square form, so that theclamps E E may keep the saw-blade from twisting when in use,

stretcher at I in the usual manner; but the stretcher may be made of around bar or of other shape, if preferred. With the construction shownthe stretcher-bar. D can be firmly clamped by the screw 1-1 when the sawis in use, and released with easewhenthe operator wishes to use thescrew G in tightening the saw-blade. A blade can therefore be insertedor removed with entire facility, and as the clamps E E keep thestretcher from rattling the nut G is less liable to get loose or to turnaroundand release the tension from. the sawblade when in use. Thestretcher being formed entirely apart from the frame or back, the lattercan be made without the expense of forgo ing an eye for the stretcher,and the clamp for the stretcher being formedof two parts, the same canbe used to bind the front end of the handle firmly to the frame, as bythe bolt F or rivets F.

Although Ihave applied the combined clamp and j aw which I have shownherein to other purposes, I have not claimed the same herein 2. Theclamp for a saw-blade stretcher,consisting in two symmetrical partssecured to the I 5 opposite sides of the handle and clamped upon thestretcher by a screw, substantially as herein shown and described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing 20 witnesses.

ANDREV MCNIEOE.

\Vitnesses:

THos. S. CRANE, H. THEBERATH.

